package com.anntly.netty.heartbeat;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.handler.timeout.IdleStateEvent;

/**
 * @Auther: 张文
 * @Date: 2020/6/7 11:04
 * @Description:
 */
public class HeartbeatHandler extends ChannelInboundHandlerAdapter {

    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
        if (evt instanceof IdleStateEvent){
            // 将evt 向下转型 IdleStateEvent
            IdleStateEvent event = (IdleStateEvent) evt;
            String eventType = "";
            switch (event.state()){
                case READER_IDLE:
                    eventType = "读空闲";
                    break;
                case WRITER_IDLE:
                    eventType = "写空闲";
                    break;
                case ALL_IDLE:
                    eventType = "读写空闲";
                    break;
            }
            System.out.println(ctx.channel().remoteAddress() +"超时" + eventType);
            // 根据需求来处理
            ctx.channel().close();
        }
    }
}
